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Old 02-17-2013, 06:16 PM   #11 (permalink)
JSarge
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Well, it runs fine without the crank sensor after a few more seconds of cranking as you said. Good to know that its working. I'm really fooled that its the crank sensor. The local part store only has after market, i dont think i want to waste my time. Im going to wait till next week, and order an ACDelco from Rockauto. If this thing jump out of time again, im just going to unplug the crank sensor and see if it goes back to where it should be.

As far as the intense amount of white smoke, its definitely not coolant cause the level hasnt changed, and it has zero blow by and minimal oil infront of the compressor turbine. Im really thinking the turbo is SHOT OUT. Im going to upload a vid of me showing the shaft play, you guys tell me what you think. Keep in mind, this camera is under 1 megapixel, and you can still see the shaft play!

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[ '88 GMC C3500 DRW SLE 6.5TD TH400/DANA 80/4.10 "F" TRIM - Ext Cab/Long Box ] Rebuild Thread: Click Here!
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Last edited by JSarge; 02-17-2013 at 06:29 PM.
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Old 02-17-2013, 06:20 PM   #12 (permalink)
Big Blue DSL
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Random timing loss.. Help!

If you can push the shaft side to side and have the wheel touch the housing it's all done .
Have you done a time set and tdc learn procedure with gmtdscantech ?



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1995 suburban K1500(known to us as "marbles")398500km
New 18:1 engine(10000KM ago),stud girdle, balanced,DSG gear Drive, Diamond pre-chambers,HO water pump and dual T/Stats,marine injectors,3" down pipe, 4" downpipe back DUAL exhaust from diamond eye,new pensacola ds4 pump,home made remote filters and carter lift pump,home made FTB mod(drilled out fitting in IP,HUMMER hydraulic cooling fan, HOLSET HX40W,Peinisular intake. Now rocking a six banger by buddy and it flat out rocks!
in the works...... just a few more things
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Old 02-17-2013, 06:24 PM   #13 (permalink)
JSarge
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Quote:
Originally Posted by Big Blue DSL View Post
If you can push the shaft side to side and have the wheel touch the housing it's all done .
Have you done a time set and tdc learn procedure with gmtdscantech ?



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If i pull on the shaft at all, it locks up and doesnt turn. Im assuming its hitting the housing, but regardless it locks up if i put any type of tension on the shaft (up down etc). I just cant think of anything else that would cause this thing to smoke.

If look at my prior videos in this post or the text, it shows me attempting a TDC timeset and TDCO learn. It is wacky. The advertised timing sticks at 0 when either function is on (normal) .. but the actualy timing that it posts is over 25 (twenty five) degrees! Shouldnt be around ~8-11*? It makes no sense that it can report a number like that and still run. Which is why im thinking a sensor is faulty somewhere.
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[ '95 GMC C2500HD SLE 6.5TD 4L80E/G80/3.73 "F" TRIM - Ext Cab/Long Box ] Rebuild Thread: Click Here!
Vac pump del DE 3" down pipe w/ 4" straight pipe exits before axle H/O water pump 180 degree tstat
Bumper mounted FSD Home made TM @ 10 PSI Lube specialists oil line's Rebuilt 506 w/ ARP main studs


[ '88 GMC C3500 DRW SLE 6.5TD TH400/DANA 80/4.10 "F" TRIM - Ext Cab/Long Box ] Rebuild Thread: Click Here!
Original 7.4 truck GM Goodwrench 506 DB2-4911 180 degree tstat
Custom 3" side stack Home made TM @ 10 PSI Leroy Diesel oil line's


6.5 FAQ L@@K!: Click Here!
6.5 Mod List: Click here!
DB2 Conv Guide: Click Here!

Last edited by JSarge; 02-17-2013 at 06:27 PM.
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Old 02-17-2013, 06:27 PM   #14 (permalink)
JSarge
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Keep in mind, when i was moving the pump around after setting up the engine, no matter where the pump was turned too, it would report that crazy 25.x* actual timing. Again, telling me a sensor is reporting a bad number.

P.s... video fixed
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[ '95 GMC C2500HD SLE 6.5TD 4L80E/G80/3.73 "F" TRIM - Ext Cab/Long Box ] Rebuild Thread: Click Here!
Vac pump del DE 3" down pipe w/ 4" straight pipe exits before axle H/O water pump 180 degree tstat
Bumper mounted FSD Home made TM @ 10 PSI Lube specialists oil line's Rebuilt 506 w/ ARP main studs


[ '88 GMC C3500 DRW SLE 6.5TD TH400/DANA 80/4.10 "F" TRIM - Ext Cab/Long Box ] Rebuild Thread: Click Here!
Original 7.4 truck GM Goodwrench 506 DB2-4911 180 degree tstat
Custom 3" side stack Home made TM @ 10 PSI Leroy Diesel oil line's


6.5 FAQ L@@K!: Click Here!
6.5 Mod List: Click here!
DB2 Conv Guide: Click Here!

Last edited by JSarge; 02-17-2013 at 06:29 PM.
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Old 02-17-2013, 06:29 PM   #15 (permalink)
Big Blue DSL
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Random timing loss.. Help!

Does it have any codes in it?
It needs to be up to above 170 for the time set and tdc to work
You run the time set and it should have 3.5 degrees actual and I believe desired should be 0
Then run the tdco learn



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1995 suburban K1500(known to us as "marbles")398500km
New 18:1 engine(10000KM ago),stud girdle, balanced,DSG gear Drive, Diamond pre-chambers,HO water pump and dual T/Stats,marine injectors,3" down pipe, 4" downpipe back DUAL exhaust from diamond eye,new pensacola ds4 pump,home made remote filters and carter lift pump,home made FTB mod(drilled out fitting in IP,HUMMER hydraulic cooling fan, HOLSET HX40W,Peinisular intake. Now rocking a six banger by buddy and it flat out rocks!
in the works...... just a few more things
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Old 02-17-2013, 06:32 PM   #16 (permalink)
JSarge
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Yes, i followed all of the proper instructions to time it. Wait to be above 170*F, clear codes, and run the time set functions. Regardless of where the pump is turned too, it posts outrageous numbers that are WAY out of tolerance yet, it goes up and down the road and hits on all 8. It just has to be the crank sensor. Theres nothing else that would report just nutty numbers.. that i know of.
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[ '95 GMC C2500HD SLE 6.5TD 4L80E/G80/3.73 "F" TRIM - Ext Cab/Long Box ] Rebuild Thread: Click Here!
Vac pump del DE 3" down pipe w/ 4" straight pipe exits before axle H/O water pump 180 degree tstat
Bumper mounted FSD Home made TM @ 10 PSI Lube specialists oil line's Rebuilt 506 w/ ARP main studs


[ '88 GMC C3500 DRW SLE 6.5TD TH400/DANA 80/4.10 "F" TRIM - Ext Cab/Long Box ] Rebuild Thread: Click Here!
Original 7.4 truck GM Goodwrench 506 DB2-4911 180 degree tstat
Custom 3" side stack Home made TM @ 10 PSI Leroy Diesel oil line's


6.5 FAQ L@@K!: Click Here!
6.5 Mod List: Click here!
DB2 Conv Guide: Click Here!
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Old 02-17-2013, 06:33 PM   #17 (permalink)
Big Blue DSL
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Random timing loss.. Help!

For sure man I would get a new crank sensor in it ASAP


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1995 suburban K1500(known to us as "marbles")398500km
New 18:1 engine(10000KM ago),stud girdle, balanced,DSG gear Drive, Diamond pre-chambers,HO water pump and dual T/Stats,marine injectors,3" down pipe, 4" downpipe back DUAL exhaust from diamond eye,new pensacola ds4 pump,home made remote filters and carter lift pump,home made FTB mod(drilled out fitting in IP,HUMMER hydraulic cooling fan, HOLSET HX40W,Peinisular intake. Now rocking a six banger by buddy and it flat out rocks!
in the works...... just a few more things
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Old 02-17-2013, 06:36 PM   #18 (permalink)
JSarge
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Yeah, i plan on it. What is the easiest way to pull the current crank sensor out of the timing cover? Is it a pressed in deal or is it threaded? The top of the sensor is practically gone, which looks to be where you could or 'used to be able to' get a wrench on it. Someone told me just to pull on the wire and it will pop out after the retainer is off, but didn't seem all that accurate.
__________________
[ '95 GMC C2500HD SLE 6.5TD 4L80E/G80/3.73 "F" TRIM - Ext Cab/Long Box ] Rebuild Thread: Click Here!
Vac pump del DE 3" down pipe w/ 4" straight pipe exits before axle H/O water pump 180 degree tstat
Bumper mounted FSD Home made TM @ 10 PSI Lube specialists oil line's Rebuilt 506 w/ ARP main studs


[ '88 GMC C3500 DRW SLE 6.5TD TH400/DANA 80/4.10 "F" TRIM - Ext Cab/Long Box ] Rebuild Thread: Click Here!
Original 7.4 truck GM Goodwrench 506 DB2-4911 180 degree tstat
Custom 3" side stack Home made TM @ 10 PSI Leroy Diesel oil line's


6.5 FAQ L@@K!: Click Here!
6.5 Mod List: Click here!
DB2 Conv Guide: Click Here!

Last edited by JSarge; 02-17-2013 at 06:36 PM.
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Old 02-17-2013, 06:56 PM   #19 (permalink)
Big Blue DSL
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Random timing loss.. Help!

Iirc they just press into the timing cover, should pull out but I bet u could use a set of vise grips on the end of the old one to pull it out after the retainer is removed


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__________________
1995 suburban K1500(known to us as "marbles")398500km
New 18:1 engine(10000KM ago),stud girdle, balanced,DSG gear Drive, Diamond pre-chambers,HO water pump and dual T/Stats,marine injectors,3" down pipe, 4" downpipe back DUAL exhaust from diamond eye,new pensacola ds4 pump,home made remote filters and carter lift pump,home made FTB mod(drilled out fitting in IP,HUMMER hydraulic cooling fan, HOLSET HX40W,Peinisular intake. Now rocking a six banger by buddy and it flat out rocks!
in the works...... just a few more things
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Old 02-17-2013, 07:23 PM   #20 (permalink)
racer55
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If you do a timeset command the timing is supposed to make an attempt to get to 0 degrees,IIRC since the way the system is designed 3.5 degrees actual timing is normal.

Timeset IMHO only real value is to tell you that the stepper motor is capable of working-the #'s mean very little in real life.

The TDCO relearn is much more important.
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Last edited by racer55; 02-17-2013 at 07:23 PM.
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